What powers 
clutch-s.jp?
Last seen Sep 2026 · 28 technologies across 15 categories
Advertising
Yahoo Advertising
since Apr 2022
Analytics
Authentication
Facebook Login
since Jul 2021
CDN
Google Hosted Libraries
since Feb 2022
CMS
WordPress
since Aug 2017
Databases
MySQL
since Aug 2018
Font scripts
Hosting
Xserver
since Aug 2022
JavaScript libraries
Slick
since Aug 2018
Miscellaneous
Programming languages
PHP
since Aug 2018
Security
reCAPTCHA
since Jun 2020
Tag managers
Google Tag Manager
since Aug 2018
Web servers
WordPress plugins
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
- Oct 2026 * removed from robots.txt
- Sep 2026 robots.txt removed
- Aug 2026 robots.txt appeared
- Aug 2026 * added to robots.txt
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 57% desktop
- 43% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.44 / 10 · ranked #961,917 of all domains
26 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 1.7 MB · 98 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on DIGIROCK DigiRock, Inc. (183.90.183.159)
- DNS: Xserver
- Email: Xserver
- Email security: SPF (soft fail), DMARC monitor only, BIMI
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 10,015,098, 4 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| clutch-s.jp | 22 |
| job.clutch-s.jp | 14 |
Full technology history →
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